arch/sh/include/asm/mmzone.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_SH_MMZONE_H
   3 #define __ASM_SH_MMZONE_H
   4
   5 #ifdef CONFIG_NEED_MULTIPLE_NODES
   6 #include <linux/numa.h>
   7
   8 extern struct pglist_data *node_data[];
   9 #define NODE_DATA(nid)          (node_data[nid])
  10
  11 static inline int pfn_to_nid(unsigned long pfn)
  12 {
  13         int nid;
  14
  15         for (nid = 0; nid < MAX_NUMNODES; nid++)
  16                 if (pfn >= node_start_pfn(nid) && pfn <= node_end_pfn(nid))
  17                         break;
  18
  19         return nid;
  20 }
  21
  22 static inline struct pglist_data *pfn_to_pgdat(unsigned long pfn)
  23 {
  24         return NODE_DATA(pfn_to_nid(pfn));
  25 }
  26
  27 /* arch/sh/mm/numa.c */
  28 void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end);
  29 #else
  30 static inline void
  31 setup_bootmem_node(int nid, unsigned long start, unsigned long end)
  32 {
  33 }
  34 #endif /* CONFIG_NEED_MULTIPLE_NODES */
  35
  36 /* Platform specific mem init */
  37 void __init plat_mem_setup(void);
  38
  39 /* arch/sh/kernel/setup.c */
  40 void __init __add_active_range(unsigned int nid, unsigned long start_pfn,
  41                                unsigned long end_pfn);
  42 /* arch/sh/mm/init.c */
  43 void __init allocate_pgdat(unsigned int nid);
  44
  45 #endif /* __ASM_SH_MMZONE_H */